Games like Claire
Games like Claire include Outlast, DISTRAINT: Deluxe Edition, Little Nightmares, Tales of the Black Forest, and The Coma 2: Vicious Sisters. We matched them by the tags players give Claire on Steam (Horror, Indie, Female Protagonist, Adventure, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Horror · Survival Horror · Atmospheric

DISTRAINT: Deluxe Edition
Shared: Indie · Horror · Pixel Graphics

Little Nightmares
Shared: Horror · Adventure · Indie

Tales of the Black Forest
Shared: Horror · Indie · Pixel Graphics

The Coma 2: Vicious Sisters
Shared: Horror · Indie · Adventure

Five Nights at Freddy's: Into the Pit
Shared: Horror · Adventure · Pixel Graphics

The Witch's House MV
Shared: Horror · Indie · Pixel Graphics

Poppy Playtime
Shared: Horror · Survival Horror · Indie

DreadOut
Shared: Horror · Indie · Female Protagonist

Mad Father
Shared: Horror · Pixel Graphics · 2D

IMSCARED
Shared: Horror · Indie · Pixel Graphics

Darkwood
Shared: Horror · Adventure · Survival Horror

Hellblade: Senua's Sacrifice
Shared: Female Protagonist · Horror · Atmospheric

Slender: The Arrival
Shared: Horror · Indie · Survival Horror

SILENT HILL f
Shared: Horror · Female Protagonist · Survival Horror

Little Nightmares II
Shared: Horror · Adventure · Atmospheric

Look Outside
Shared: Horror · Pixel Graphics · Adventure

CARRION
Shared: Horror · Pixel Graphics · Indie

Sally Face - Episode One
Shared: Indie · Horror · Adventure

Resident Evil 3
Shared: Horror · Female Protagonist · Action

LIMBO
Shared: Indie · Adventure · Horror

Outlast 2
Shared: Horror · Survival Horror · Psychological Horror

Bendy and the Dark Revival
Shared: Horror · Indie · Adventure

OMORI
Shared: Indie · Pixel Graphics · Horror